Geochronology
Geochronology
GChron
Articles | Volume 3, issue 2
Articles | Volume 3, issue 2
https://doi.org/10.5194/gchron-3-505-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-3-505-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 3, issue 2
Research article
 | 
19 Oct 2021
Research article |  | 19 Oct 2021

Cosmogenic nuclide exposure age scatter records glacial history and processes in McMurdo Sound, Antarctica

Andrew J. Christ, Paul R. Bierman, Jennifer L. Lamp, Joerg M. Schaefer, and Gisela Winckler

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Latest update: 25 Oct 2025
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Short summary
Cosmogenic nuclide surface exposure dating is commonly used to constrain the timing of past glacier extents. However, Antarctic exposure age datasets are often scattered and difficult to interpret. We compile new and existing exposure ages of a glacial deposit with independently known age constraints and identify surface processes that increase or reduce the likelihood of exposure age scatter. Then we present new data for a previously unmapped and undated older deposit from the same region.
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